Some more info: 1. The USB controller on the RPi 4/5 is the Via VL805. It has had firmware updates for various isochronous problems in the past. I'll try the RPi list and see if anybody is interested.
2. The RPi 3B+ uses the Microchip LAN7515 controller and wsjtx works FB with the FT-710. I got lots of pskreporter flags on only 5 watts. But for me, it's too slow to be useful. Steve WA9OLA On Sat, 2024-06-29 at 13:04 -0600, Steve Brown via wsjt-devel wrote: > Hi, > > No problem on Ubuntu 24.04 on an amd64, but no audio on RPi 5 with > the > same OS. Receive works on both. > > I rebuilt wsjtx so the images are identical on both (2b9d65). > > The settings are identical. > > The sound output name is > "alsa_output.usb-C-Media_Electronics_Inc._USB_Audio_Device-00.analog- > stereo" > > The log is spammed with > > Jun 28 14:48:00 wsjtx kernel: retire_capture_urb: 1014 callbacks > suppressed > Jun 28 14:48:01 wsjtx pipewire[1007]: spa.alsa: hw:2: snd_pcm_status > error: No such device > Jun 28 14:48:01 wsjtx pipewire[1007]: spa.alsa: hw:2: snd_pcm_recover > error: No such device > Jun 28 14:48:01 wsjtx pipewire[1007]: spa.alsa: get_status error > Jun 28 14:48:01 wsjtx pipewire[1007]: spa.alsa: hw:2: snd_pcm_drop No > such device > Jun 28 14:48:01 wsjtx pipewire[1007]: spa.alsa: hw:2: close failed: > No such device > Jun 28 14:48:01 wsjtx pipewire[1007]: spa.alsa: front:2: snd_pcm_drop > No such device > Jun 28 14:48:01 wsjtx pipewire[1007]: spa.alsa: front:2: close > failed: No such device > Jun 28 14:48:01 wsjtx kernel: usb 1-2.2: reset full-speed USB device > number 4 using xhci-hcd > Jun 28 14:48:03 wsjtx pipewire[1007]: spa.alsa: front:2: snd_pcm_drop > No such device > Jun 28 14:48:03 wsjtx pipewire[1007]: spa.alsa: front:2: close > failed: No such device > Jun 28 14:48:03 wsjtx kernel: usb 1-2.2: reset full-speed USB device > number 4 using xhci-hcd > Jun 28 14:48:05 wsjtx pipewire[1007]: spa.alsa: front:2: snd_pcm_drop > No such device > Jun 28 14:48:05 wsjtx pipewire[1007]: spa.alsa: front:2: close > failed: No such device > Jun 28 14:48:05 wsjtx kernel: usb 1-2.2: reset full-speed USB device > number 4 using xhci-hcd > > If I set wsjtx audio output to the hdmi audio device, I get FT8 tones > and no complaints in the log. > > The rig indicates transmit, but no audio, so no RF. > > Any suggestions on tracking this down? > > I tried uncommenting some of the qDebug calls, but can't find/enable > the output. > > Steve WA9OLA > > > > > _______________________________________________ > wsjt-devel mailing list > wsjt-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wsjt-devel _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
